Attachment for wheels.



H. BOOKER.

TTACHMENT FOR WHEELS.

APPLICATION FILED MNA, 1912.

Patented Aug. 6, 1912.

2 SHEETS-SHEET 2.

@Homey H. BOOKER.

ATTACHMENT FDR WHEELS.

APPLICATION FILED JAN.4,1912.

l034,1 0.. Patented Aug. 6, 1912.

2 SHEETS-SHEET 1.

@noem/Coz 1 ments for Wheels,

I operative position thereon.A

'attachments HARVEY BOOKER, F WILMINGTON, DELAWARE.

ATTACHMENT FOR llI-IEELS.

Specification of Letters Patent.

Patented fling. d, 1912.

.Application led January 4, 119,12. Serial No. 669,346.

To all whom it may concern:

Be it known that I, HARVEY Booman, a citizen of the United States,residing at Wilmington, in the county ot Newcastle and State ofDelaware, have invented certain new vand useful Improvements in Attachofwhich the following i s a specilcation;

My invention relates to improvements in invention being to provide anattachment for wheels, which is designed to prevent skidding or slippingof the wheel so as to compel the wheel to grip the ground to insure thestarting lof the vehicle, and also to prevent slipping sidewise. I

A further object is to provide anattachment which is especially designedfor use on automobile wheels, and which may be readily turned so as tobe moved into opera- 'A position, and setive or into inoperative surelyheld in either of its positions.

lll/*ith these and 'other objects in view, the

invention consists in certain novel features oi' construction andcombinations and arrangements of parts, as will be morel fullyhereinafter described and pointed out in the claims.

.ln the accompanying drawings: Figure 1, is a view in side elevation ot'an automobile wheel illustrating my improvements in Fig. 2, is a view insection on an enlarged scale on the line .2e-2 of Fig. Fig. 3, is a Viewin cross section on the line 8-3 of Fig. 1. Fig. Il, is an end view ofthe block 3. Fig. 5, .is a view in section on the line 5 5 of Fig. 3,.6, is a view similar to Fig. 2 illustrating a modification. Fig. 7, is aview in sect-ion on the line 7-7 of Fig. 6, and Fig.

8, is a view in elevation of a car wheel showing my improvements mountedthereon.

1, represents a wheel such as ordinarilyr used on automobiles and tocertain of the spokes 2 of which, blocks 3 are secured. These blocks 3extend transversely through the wheel, and have half bearings tocooperate with a removable plate e secured in a recess 5 in block 3 bymeans of bolts 6, and nuts 7, so as to securely clamp the block on thespoke. ln other words, the block 3 is cut out or recessed to 'reinivethe plate 4, so that when the latter is securely held by means of thebolts and nuts, a smooth finished appearanpe will be given the block,and the latter will fixed to the spoke.

for wheels, the object of thev brackets 9 have secured. In other words,.projected through central The ends of the block 3 are Hat, and areprovided centrally with studs 8 on which rotary mounting, and are thestuds 8 are openings in the v brackets 9, and are upset at their endspermit the latter rotary movement.

so as to securely hold thev brackets, yet rlhe brackets 9, at theirends, are provided with perforated ears 10, in which spikes 11 aremounted. These spikes 11 have. pointed en'ds to engage the ground andcoiled springs 12 are located around the spikes bctween the ears 10, andbear against transverse pins 13 in the s ikes, normally pressing thespikes outwar ly so as to elastically contact with the ground. Thumbscrews 14 are mounted in the brackets 9, and are adapted to be screwedinto either of two i sockets 15 inthe blocks 3, so as to hold thebracket in position to project the vpointed end of the spike outwardlywhen the attachment is in use or hold the brackets with the spikesprojected inwardly, when they arc not adapted for use. ln other words.lthe bracket-sare permitted to turn on the studs 8, so as to project thespikes outwardly or to project them inwardly, and the thumb screw 14-will securely hold the bracket in veither of these positions.

In the modification illustrated in Figs. 6, and 7, a block 16 isprovided which is clamped by means of a plate 17, which latter and theblock are made with perforated ears for the reception of bolts 18, andnuts 19 to clamp the block to the spoke. lVhile this block projects toone side of the spoke only, and not to both sides as is the case withthe form above described, in all other respects it is similar to thatabove described,

.and is provided with a bracket and spike corresponding to the bracketand spike of the form shown in Figs. 1 and 2, and hence the samereference characters are used to designate the same parts in both forms.W

In Fig. 8, l illustrate my improved 'brackets with their spikes on theouter tace of a car wheel. With this torni of my invention, while thebrackets and the spikes are constructed as above explained, and havecorresponding reference characters on the drawings, the spikes areadapted to engage the ground outside or" the rail so as to preventslipping of the wheel in starting, and also dispenses with the necessityfor sand on the track.

using Various other slight changes might be made in the general form andarrangement ofl parts described without departing from my invention, andhence I do not limit myself 4to the precise details set forth, butconsider myself at liberty to make such changes and alterations asfairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claimas new and desire tosecure by Letters Patent is: u

l. An attachment of the character described, comprising a block, meansfor securing said block to a wheel spoke, a stud on said block, abracket having rotary mounting,- onsaid stud, perforated ears on saidbracket, a spike mounted to reciprocate in said perforated ears, alcoiled spring` around said spike between the earsand engaging 'thespike, said block having sockets therein, .and a thumb screw m saidbracket adapted to engage in either of said sockets and hold the bracketin position to project the spike outwardly or inwardly, substantially'as described. l

2. An attachment of the character described, comprising a block having arecessed spoke receiving intermediate portion, a plate secured in saidrecess and adapted to clamp a spoke against the block, studs on the endsof said block, brackets having rotary mounting on said studs,spring-pressed spikes in said brackets, and means for holding saidbracket in position to project the spikes outwardly or inwardly,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARVEY. BGOKER.

Witnesses i It. H. KRENKEL, Crmumcs E. Io'r'rs.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of :Patents1 Washington, D, 6..

